William h



(ModeL) W. H. MARKLAND.

ELECTRIC VALVE CONTROLLER. N*0. 369,8C1. Patented Sept. 13, 1887'.

hl l l k WITNESSES: INVENTOR ML Y M Mag wfim ug ATTORNEY.

UNITED STATES PATENT Urrrcn.

WVILLIAM H. MARKLAND, OF BROOKLYN, NEWV YORK, ASSIGNOR, RY MESNE ASSIGNMENTS, TO THE TUCKER ELECTRICAL MANUFACTURING CCMPANY,

OF N EW' YORK.

ELECTRIC VALVE-CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 369,801, dated September 13, 1887.

Application filed February 9, 1886. Serial No. 191,275.

To aZZ whom it may concern.-

Be it known that I, WILLIAM H. MARK- LAND, a citizen of the United States, residing in the city of Brooklyn, county of Kings, and State of New York, have invented a certain new and useful Electrical Reciprocating and Circuit-Breaking Device; and I do hereby declare that the following is a full, clear, and exact description of my invention, reference beinghadto theaccompanyingdrawings,which form a part of this specification.

The object of this invention is a device adapted to be used with structures which are operated by electricity-such as the temperature-regulator described in Letters Patent of GharlesA. Tucker, No. 328,156, dated October 13, 1885, to which it is shown applied in the drawings; but it may also be used to great advantage with any other structure requiring reciprocating action, and where it is desired to break the circuit after such action in order to save battery. I

Figure 1 is an elevation of my device; and Fig. 2 shows the thermostat-strip, which can be used therewith to advantage.

C is a reciprocating slide moving in suitable bearings, g g, to have a forward-and-backward movement. Above and below this slide in suitable supports are the magnets A B. The armature a is pivoted in the support of the magnet A, and from the end of this armature a an arm passes to one end of the slide and is pivotally attached thereto, being jointed therein to permit free forward and backward movement. The armature b is pivoted to the support of the magnet B, and from the end of this armature b an arm passes to the other end of the slide 0, and is pivotally attached thereto in a similar manner, so that when one armature is attracted to its magnet, drawing the slide C in its direction, the slide will carry the other armature away from its magnet.

On the slide C, and moving therewith, a suitable insulated piece, s,is secured, provided with two separate strips,c d,of platinum. From one of these strips, 0, a coiled wire, t, is connected with the wire 0 of the magnet B, and from the other platinum strip,- d, a coiled (Model.)

wire, t, is connected with the wire 0 from the magnet A. The wires from the platinum strips are coiled, in order to permit the easy forward and backward movement of the parts. The other wires, n n, from each magnet are joined and carried as one wire, m, to one pole of the battery F. To a piece, H, two thin metal strips, 0 d, are secured, which are furnished at their upper ends with metallic friction-rollers i 2', bearing against the platinum strips 0 d.

Above the slide C is pivoted alever, e,which carries a friction-roller, e, at its free end. This lever is drawn down against the upper face of the slide 0 by the tension-spring f.

Two inclined notches, h h, to receive the friction-roller e, are cut into the upper face of the slide C.

In the application of my invention shown in the drawings a thermostat, G, is to be employed. This consists of a strip of flat metal, o,Fig. 2,preferably zinc,to each edge of which a wire, a 20, preferably steel, is soldered. One end of this thermostat-strip is secured to a suitable support, 1', and is connected to the other pole of the battery F by the wire m. At convenient distances from the free end of the thermostat-strip adjustable contact-points p q are disposed, one of which is connected by the wire 70 to the strip 0 and the other by the wire Z to the strip (2. These contact-points p q are adjusted in such relation to the strip 22 that when the thermostat G is operated by the expansion caused by heat the strip 1; will bend toward and touch one of the points, q, and when the thermostat is operated by the contraction caused by cold the strip 17 will bend over andtouch the other contactpoint,p.

I have found that a thermostat constructed as described works very well; but other forms of thermostat or any suitable switching device may be employed to make and break the circuit in place of such thermostat.

In the drawings the slide C is shown attached to a pivoted slat,l),by the joint j. The pivoted slats D D of the system are pivotally connected by the rod J, and in the position shown in the drawings the slats are closed. \Vhen the room in which the slats are adjusted becomes warmed to the point at which the contact-point qis adjusted to meet the inclina tion of the thermostat-strip o, the circuit will be completed from the battery F through the wire m, strip '0, point q, wire Z, strip d, platinum d, wire 75, wire 0', wires n and m, excit ing the magnet A, attracting the armature a, whereby the slide 0 is shot back to its limit of movement, raising up the free end of thelever 6 out of the notch 71. and allowing it to enter the notch h, thereby drawing open the pivoted slats D, the impetus of the movement of the slide 0 and the pressure of the wheel 6 on the inclined notch h drawing the slide 0 so far back that the platinum (1 passes beyond the wheel 1 of the strip d, and the circuit is there broken, just as in the reverse motion of the slide 0 between the strip 0 and platinum c it is broken, as shown in the drawings; but when that has been done the wheel i of the strip a will rest upon its platinum c, and that point in the circuit will be closed. The slats D D willthen remain open, the battery being out of circuit while the room remains at the excessive temperature. As the room cools off, the thermostat G retires from the point q, and

When it reaches that point of contraction which carries it to the contact-point p the circuit will be completed from the battery ,F through the wire m, strip 2;, pointp, wire k, strip 0, platinum c',wire t, wire 0, wires 01. and m, exciting the magnet B, which attracts the armature b and causes the parts to assume the position shown in the drawings, opening the circuit between the strip 0 and platinum c, shooting the slide 0 forward,and thereby closing the slats D D, which will remain closed until the temperature of the room again rises to the degree which will incline the thermostat G to the point q.

While I have shown my invention applied to the movable slats D D, I do not limit the same to such use, as it may be applied in many other structures.

It will be seen that this device is exceedingly simple and can be very cheaply constructed;that it consists of only few parts, not liable'to get out of order; that there is very little friction in its operation; that it may be readily applied to a variety of uses, and that by using it the circuit is always broken directly one of the operations has taken place, and remains so broken until the reverse operation becomes necessary, when the circuit is again closed until that operation has been performed, by which,however, the circuit is again at once broken. This effects a great saving of battery, as the battery is only used during the time the circuit is closed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The reciprocating and circuit-breaking device described, consisting of the slide 0, provided with contact-points c d and brakelever e, in combination with suitable magnets, A B, and the make and break portions 0 d, all

adapted to be interposed in an electrical circuit, substantially as described.

2. In a reciprocating and circuit-breaking device, the magnets A B, provided with armatures a b, pivotally connected thereto, in combination with a slide, 0, pivotally attached to such armatures and adapted to be reciprocated thereby, such slide provided with 'contact-strips c and d, adapted to impinge upon suitable switches in an electrical circuit, such circuit having interposed asuitable switching device, as the thermostat G, substantially as described.

3. In a device such as described, a reciprocating piece, as the slide 0, provided with strips 0 d to move therewith, and adapted to be interposed in an electrical circuit, in combination with the strips 0 d, adapted to be interposed in an electrical circuit, provided with a suitable switching device, as the thermostat G, such strips 0 d arranged to impinge upon the strips 0 dduring a portion of their movement, substantially as described and shown.

4. In a device such as described, a reciprocating slide, 0, provided with contact-strips 0' 11, adapted to move therewith and form electric paths, in combination with stationary strips 0d, adapted to impinge upon the strips 0 d, successively to close independent electric circuits through the same, such circuits provided with asuitable switching device, as the thermostat G, substantially as described and shown.

5. In a device such as described, a magnet, A, pivoted armature a, and reciprocating slide 0, provided with a contact-strip, d, and stationary strip d, the same adapted to be interposed in an electrical circuit provided with a suitable switching device, as the thermostat G, and to make and break the circuit, substantially as described and shown.

6. In a device such as described, a magnet, A, armature a, attached to aslide, G, carrying the strips cd', and astationary strip,d, adapted to impinge on the strip d and be interposed in an electrical circuit to make and break the same, in combination with a magnet, B, and armature I), also attached to the slide 0, and the strip 0, adapted to impinge on the strip 0' and be interposed in an electrical circuit to make and break the same, such circuit being further provided with a suitable switching device, as the thermostat G, substantially as described and shown.

7 In a device such as described, the reciprocating slide O,armatures a b, pivoted thereto, and a pair of magnets, A B, each of said magnets provided with one wire adapted to interpose it in an independent electrical circuit provided with a suitable switching device, as the thermostat G, the other wires of said magnets being joined and carried to the battery, substantially as described and shown.

8. In a device such as described, a magnet, A, armature a, sliding piece 0, pivoted to such armature, and strips d and d, adapted to come into contact to form an electric path when the armature is withdrawn from the magnet and to be separated to interrupt the electric path through a circuit having a suitable switching device, as the thermostat G,when the armature is drawn to the magnet,substantially as described and shown.

9. In a device such as described, and pro vided with a switching device, as the thermostat G, a magnet, as A, armature a, sliding piece 0, strip 01, and strip (I, adjusted relatively to each other to close the circuit through the parts cl d and adapted to break the circuit when the armature a is in contact with the magnet A, in combination with a magnet, B, armature b, and strips 0 and c, adjusted relatively to each other to close an independent circuit through the parts 0 c, the two magnets and connections adjusted relatively to each other so that when the circuit is broken between one of the sets of impinging strips it will be closed through the other set, substantially as described and shown.

10. In a device such as described, a pair of magnets, A B, provided with armatures a b, in combination with the sliding piece 0, pivotally connected to one of said armatures at each end and carrying strips 0 d, and the stationary contact -strips 0 d, adapted to impinge thereon successively to form independent electric paths in a circuit provided with a suitable switching device, as the thermostat G, substantially as described and shown.

11. The reciprocating and circuit-breaking device described, consisting of the slide 0, lever e, magnets A B, armatures a b, and suitable connections, in combination with the make and break portions 0 0 and (Z d, and a suitable thermostat interposed in the circuit, substantially as described and shown.

12. The reciprocating and circuit-breaking device described, consisting of the slide 0, lever e, magnets A B, armatures a b, and suitable connections, and provided with the make and break portions 0 c d d, in combination with a thermostat consisting of a flat strip, 12, of metal of one degree of expansibility, having wires to u of another degree of expansibility attached thereto and provided with adjustable contact-points 10 q, substantially as described and shown.

13. The reciprocating and circuit-breaking device described, consisting of the slide 0,

carrying the strips 0 d, and provided with the lever e, in combination with the magnets AB, armatures a 1), strips 0 d, wires n a t t m m, battery F, and thermostat G, substantially as described and shown.

WILLIAM H. MARKLAND.

lVitnesses:

O. E. STANTON, Gno. H. PRICE, I EDWARD L. BRADLEY, HENRY LASS. 

